Tenet said on Friday that Glenview executives Randy Simpson and Matt Ripperger had resigned from the board.

In a letter Tenet filed with the U.S. Securities and Exchange Commission, Simpson and Ripperger said they had decided “the most effective way forward to promote strong patient satisfaction and long-term value creation for Tenet is to step off this board.”

They said the move triggered the expiration of a standstill agreement Glenview had signed with Tenet. “Glenview may evaluate other avenues to be a constructive owner” of the company, they added.

They said Glenview was fully committed to its ownership stake in Tenet. (Reporting by Michael Erman; Editing by Lisa Von Ahn)